Though these look like normal geoglyphs, these lines and shapes were actually carved some time in the 1980’s, as part of the US Fish and Wildlife’s project to determine which nesting sites were more preferable for waterfowl. The depressions fill with water during dry years, providing ducks as well as birds flying overhead the area some attractable nesting areas.

Name: Grays Lake’s ‘Geoglyphs’

Lat, Long: 43.0557572,-111.4356949

Location: Wayan, Idaho, USA

https://www.weirdgoogleearth.com/wp-content/uploads/2025/11/grays-1024x576.jpg?v=1763806011https://www.weirdgoogleearth.com/wp-content/uploads/2025/11/grays-150x150.jpg?v=1763806011WeirderGeoglyphsHuman CreationsNatureconservation,Geoglyphs,ScienceThough these look like normal geoglyphs, these lines and shapes were actually carved some time in the 1980's, as part of the US Fish and Wildlife's project to determine which nesting sites were more preferable for waterfowl. The depressions fill with water during dry years, providing ducks as well...Peculiar places from around Google Earth